31310106 has 16 divisors (see below), whose sum is σ = 64077024. Its totient is φ = 10193904.

The previous prime is 31310089. The next prime is 31310137. The reversal of 31310106 is 60101313.

It is a Curzon number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 60421 + ... + 60936.

It is an arithmetic number, because the mean of its divisors is an integer number (4004814).

Almost surely, 2^31310106 is an apocalyptic number.

31310106 is an abundant number, since it is smaller than the sum of its proper divisors (32766918).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

31310106 is a wasteful number, since it uses less digits than its factorization.

31310106 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 121405.

The product of its (nonzero) digits is 54, while the sum is 15.

The square root of 31310106 is about 5595.5434052467. The cubic root of 31310106 is about 315.1820766454.

Adding to 31310106 its reverse (60101313), we get a palindrome (91411419).

The spelling of 31310106 in words is "thirty-one million, three hundred ten thousand, one hundred six".